气候变化领域集成服务门户(CCPortal): Montane species track rising temperatures better in the tropics than in the temperate zone

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DOI	10.1111/ele.13762
	Montane species track rising temperatures better in the tropics than in the temperate zone
	Freeman B.G.; Song Y.; Feeley K.J.; Zhu K.
发表日期	2021
ISSN	1461023X
起始页码	1697
结束页码	1708
卷号	24 期号:8
英文摘要	Many species are responding to global warming by shifting their distributions upslope to higher elevations, but the observed rates of shifts vary considerably among studies. Here, we test the hypothesis that this variation is in part explained by latitude, with tropical species being particularly responsive to warming temperatures. We analyze two independent empirical datasets—shifts in species’ elevational ranges, and changes in composition of forest inventory tree plots. Tropical species are tracking rising temperatures 2.1–2.4 times (range shift dataset) and 10 times (tree plot dataset) better than their temperate counterparts. Models predict that for a 100 m upslope shift in temperature isotherm, species at the equator have shifted their elevational ranges 93–96 m upslope, while species at 45° latitude have shifted only 37–42 m upslope. For tree plots, models predict that a 1°C increase in temperature leads to an increase in community temperature index (CTI), a metric of the average temperature optima of tree species within a plot, of 0.56°C at the equator but no change in CTI at 45° latitude (–0.033°C). This latitudinal gradient in temperature tracking suggests that tropical montane communities may be on an “escalator to extinction” as global temperatures continue to rise. © 2021 John Wiley & Sons Ltd.
关键词	climate change elevational gradient global warming latitudinal gradient mountaintop extinction range shift upslope shift
英文关键词	global warming; mountain region; species diversity; temperate environment; temperature effect; tracking; tropical environment; climate change; greenhouse effect; temperature; tree; Climate Change; Global Warming; Temperature; Trees
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204390
作者单位	Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada; Department of Zoology, University of British Columbia, Vancouver, BC, Canada; Department of Environmental Studies, University of California, Santa Cruz, CA, United States; Department of Biology, University of Miami, Coral Gables, FL 33156, United States
推荐引用方式 GB/T 7714	Freeman B.G.,Song Y.,Feeley K.J.,et al. Montane species track rising temperatures better in the tropics than in the temperate zone[J],2021,24(8).
APA	Freeman B.G.,Song Y.,Feeley K.J.,&Zhu K..(2021).Montane species track rising temperatures better in the tropics than in the temperate zone.Ecology Letters,24(8).
MLA	Freeman B.G.,et al."Montane species track rising temperatures better in the tropics than in the temperate zone".Ecology Letters 24.8(2021).